Q: Is 42,705 a Prime Number?
A: No, 42,705 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 42705 can be evenly divided by 1 3 5 9 13 15 39 45 65 73 117 195 219 365 585 657 949 1,095 2,847 3,285 4,745 8,541 14,235 and 42,705, with no remainder.
Since 42,705 cannot be divided by just 1 and 42,705, it is not a prime number.